package com.huali.pattern.iterator;

import java.util.Iterator;
import java.util.List;

public class OutPutImpl {
    List<College> collegeList;

    public OutPutImpl(List<College> collegeList) {
        this.collegeList = collegeList;
    }

    public void printCollege() {
        Iterator<College> iterator = collegeList.iterator();
        while (iterator.hasNext()) {
            College college = iterator.next();
            System.out.println("=== " + college.getName() + "=====");
            printDepartment(college.createIterator()); // 得到对应迭代器
        }
    }

    private void printDepartment(Iterator<Department> iterator) {
        while (iterator.hasNext()) {
            Department department = iterator.next();
            System.out.println(department.getName());
        }
    }

}
